CN202834060U - Compound sealing spacer with corrugation stacking - Google Patents
Compound sealing spacer with corrugation stacking Download PDFInfo
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- CN202834060U CN202834060U CN201220494734.6U CN201220494734U CN202834060U CN 202834060 U CN202834060 U CN 202834060U CN 201220494734 U CN201220494734 U CN 201220494734U CN 202834060 U CN202834060 U CN 202834060U
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Abstract
The utility model discloses a compound sealing spacer with corrugation stacking, and relates to a sealing spacer, in particular to the compound sealing spacer with the corrugation stacking. The compound sealing spacer with the corrugation stacking comprises at least two layers of corrugated metal layers (3), a flexible graphite packing layer (2) which is filled between the two layers of the corrugated metal layers (3), and a flexible graphite sealing layer (1) which is arranged outside the corrugated metal layers (3) and covers the corrugated metal layers (3). The utility model provides the compound sealing spacer with the corrugation stacking and the design and manufacturing technology thereof. The compound sealing spacer with the corrugation stacking has the advantages of being heat-resisting, corrosion-resisting, small in pretightening force requirement, good in sealing property, high in rebound resilience, not easy to shatter and long in service life.
Description
Technical field
The utility model relates to a kind of gasket seal, relates in particular to the stacked composite sealing pad of a kind of ripple.
Background technique
Gasket seal is the topmost static seal form in the detachable place such as pressurized container, manufacturing equipment, power machine and connecting tube in the process industrial device.The sealing of fluid is by the mutual close contact between flange and pad, relies on the elasto plastic deformation of pad, reduces or stops up leakage way, realizes with the increase flow resistance.Gasket seal adopts the bolt flange linkage structure usually, and its Intermediate gasket is the key element that affects the bolted-flange sealing switching performance.Develop rapidly along with modern science and technology, process industrial is equipped increasingly high parameter, maximization, new technique continues to bring out, the rise of particularly petrochemical industry, atomic energy industry, large-scale power station, Process Equipment is towards high temperature, high pressure, high vacuum, deep cooling and large scale development, and is more and more strict to the requirement of gasket seal.The sealing material that some are traditional and structure can not satisfy system and the increasingly strict tightness requirement of equipment.
At present composite sealing pad commonly used mainly contains spiral wound gasket, metal jacketed gasket, metal and rushes tooth plate Expanded graphite Composition spacer, Expanded graphite metal wave tooth Composition spacer.
Spiral wound gasket is by metal tape and the nonmetal a kind of semi-metallic gasket that forms with the compound coiling of spiral.Strengthen resistance to compression by W type or V-type eyelet support, W type or V-type metal twine circle for being welded and fixed.Its shortcoming is easily to fall apart under impact, pressure vibration, and particularly the manufacturing of major diameter wound gasket is difficult, poor safety performance.
Metal jacketed gasket is take nonmetallic material as core, is cut into needed shape, a kind of Composition spacer that outside clad metal thin plate forms.Its shortcoming is that required pretension specific pressure is high, the sealing surface poor performance.
It is by the metal tooth plate that rushes tooth or punch metal central layer and the compound a kind of gasket seal that is pressed into of Expanded graphite particle that metal rushes tooth plate Expanded graphite Composition spacer.Its shortcoming is that its resilience is poor with regard to the individual layer Composition spacer, is difficult to the operating mode of adaptive temperature pressure surge.
Expanded graphite metal wave tooth Composition spacer is the static seal original paper that uses in a kind of Flanged Connection System that occurred in recent years.As shown in Figure 1 and Figure 2, it is to grow up on the grooved metal gasket basis.A kind of Composition spacer that is composited by ripple dentation metal frame and the Expanded graphite of certain geometrical shape.Its shortcoming is that ripple dentation metal frame needs turning to shape, and is subjected to the limitation of turning machining accuracy, and local thickness's attenuate easily occurs; The crown of ripple tooth metal frame is easily hindered flanged surface; Easy cracking under high-temperature condition; Because the limitation of process equipment, processing major diameter pad is difficulty, and cost of production is high.
Both at home and abroad doing a large amount of work aspect the theory of metallic shim, Composition spacer and the experimental research, sealing material and the element of exploitation can be used under the general working condition, but when operating conditions is relatively harsher, as withstand shocks simultaneously at high temperature, high pressure, under the operating mode of alternate load and thermal cycle, seal element commonly used is because material degradation and structural relaxation usually cause the inefficacy that is tightly connected.
The model utility content
In order to overcome the conventional composite gasket seal at High Temperature High Pressure, low temperature and to have short deficiency of resilience and poor sealing performance under vibration, impact and the thermal cycle working condition, working life, it is a kind of high temperature resistant that the utility model provides, anticorrosive, needed pretightening force is less, good seal performance, rebound elasticity is high and be difficult for falling apart the stacked composite sealing pad of the multilayer corrugated of long service life and design and manufacturing technology thereof.
Such as Fig. 3, the utility model provides a kind of ripple stacked composite sealing pad.Described composite sealing pad mainly is made of two-layer at least corrugated metal layer 3, the Expanded graphite packed layer 2 between described corrugated metal layer 3 and corrugated metal layer 3 and the flexible graphite sealing layer 1 that is coated on outside the described corrugated metal layer 3.The waveform of described corrugated metal layer 3 is sinusoidal wave, and corrugated metal layer 3 is 2 ~ 4 layers.The amplitude of the sine wave of described corrugated metal layer 3 is 0.5 ~ 1.2mm, and the ripple spacing of corrugated metal layer 3 is 1.0 ~ 10mm.The thickness of corrugated metal layer 3 is 0.2 ~ 0.6mm.Described Expanded graphite packed layer 2 is 1 ~ 3 layer.The thickness of described Expanded graphite layer 2 is 0.3 ~ 0.8mm.The material of corrugated metal layer 3 is carbon steel, stainless steel, titanium, monel metal, inconel.
The Expanded graphite metal wave tooth composite pad of prior art is to be machined into the ripple dentation sheet metal of a plurality of isocentric circular arc formations as the metal frame of Composition spacer, the upper and lower surface of ripple dentation sheet metal is the compounded flexible graphite sealing layer respectively, thereby is processed into Expanded graphite metal wave tooth composite pad.
With reference to accompanying drawing 3, the stacked composite sealing pad of the ripple that the utility model provides the wherein compound mode of corrugated metal layer 3 and Expanded graphite packed layer 2, flexible graphite sealing layer 1 can be respectively: two layers of corrugated metal layer 3() and Expanded graphite packed layer 2(one deck) and two layers of flexible graphite sealing layer 1(), three layers of corrugated metal layer 3() and two layers of Expanded graphite packed layer 2() and two layers of flexible graphite sealing layer 1(), four layers of corrugated metal layer 3() and three layers of Expanded graphite packed layer 2() and two layers of flexible graphite sealing layer 1().
The corrugated metal is the waveform impact briquetting according to different amplitudes and cycle, then makes up in a manner described, is processed into the stacked composite sealing pad of ripple.
The stacked composite sealing pad metal frame of the ripple that the utility model provides adopts sinusoidal wave its geometrical shape that is, the main distinction of all kinds sine wave is the different of amplitude and spacing.The metal frame dentation that the utility model provides is sinusoidal wave amplitude range: 0.5 ~ 1.2mm; The number of sinusoidal wave crest is 4 ~ 10; Sinusoidal wave spacing is recommended as: 0.4 ~ 12mm, actual size also needs to require comprehensively to determine according to sealed face width degree and tightness.Greatly then frequency is less for sinusoidal wave spacing, and sinusoidal wave number is less on the whole gasket width; The sinusoidal wave little then frequency of spacing is larger, and the sinusoidal wave number of generation is more, can be combined to form multiple-sealed.Finally determined the sinusoidal wave size of metal frame by above definite amplitude and spacing two parameters.
It is the geometrical shape of the stacked composite sealing pad metal frame of ripple that the utility model adopts sine wave, metal frame is formed by the thin plate compacting, the each several part even thickness, geometrical shape is sinusoidal wave shape in addition, thereby skeleton is stressed evenly, have preferably shock resistance and rebound elasticity, it is less that the stacked composite sealing pad of ripple is installed required pretightening force.
The metal frame of the Expanded graphite metal wave tooth composite pad of prior art adopts a plurality of isocentric circular arc to form its geometrical construction, present technical pattern is improved to certain width and (mostly is 1 ~ 2mm) linear platform as its crest at the crest place, technical pattern is worn the flexible graphite sealing layer and is destroyed flange facing at stressing conditions lower tooth spine before having avoided, and causes leakage accident.Ripple dentation metal frame is compared with the sinusoidal wave shape skeleton, and the thickness direction size differs, and it is stressed not bery even, in the stressed minimum in crown place, and stressed larger at the metal frame thinnest part; Rebound elasticity and shock resistance are relatively poor, the required pretightening force of Expanded graphite metal wave tooth composite pad are installed larger; Be subjected to the limitation of turning machining accuracy, local thickness's attenuate easily occurs.
Beneficial effect: adopt this Composition spacer to utilize the compound structure of multiple layer metal skeleton and Expanded graphite, so that this Composition spacer resilience is good, be difficult for falling apart, high temperature resistant, anticorrosive, needed pretightening force is less.This Composition spacer has the double action of wire sealing and nonmetal graphite sealing concurrently, and has multiple-sealed effect; Not too responsive to the flange seal surface imperfection, good seal performance and do not damage the flange working surface.Utilize the rebound elasticity of corrugated metal, this composite sealing pad can reduce or the impact of partial offset pressure, temperature variation and mechanical vibration, still has excellent sealability under the effects such as high temperature, high pressure, low temperature, repeat load.
Description of drawings
Fig. 1 is metal framework structure of the prior art.
Fig. 2 is the sectional view of wave tooth spacer structure.
Fig. 3 is the sectional view of the stacked composite sealing pad of ripple.
Fig. 4 sectional view that to be bolt, flange be connected with the stacked composite sealing pad of ripple.
Fig. 5 is that bolt tightens sequential schematic.
1-flexible graphite sealing layer; 2-Expanded graphite packed layer; 3-corrugated metal layer; 4-upper flange; 5-stud; 6-nut; 7-ordinary elasticity packing ring; The stacked composite sealing pad of 8-multilayer corrugated; The 9-lower flange.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The stacked composite sealing pad of ripple comprises by flexible graphite sealing layer 1, Expanded graphite packed layer 2 and corrugated metal layer 3 as shown in Figure 3.Wherein corrugated metal layer 3 is the skeleton of the stacked composite sealing pad of described ripple, at the upper and lower surface of described corrugated metal layer 3 compound one deck flexible graphite sealing layer 1 all, a small amount of tackiness agent can be used as required between corrugated metal layer 3 and the flexible graphite sealing layer 1, also tackiness agent can be do not used.Between corrugated metal layer 3 and corrugated metal layer 3, filling flexible graphite layer 2 is arranged.The waveform of corrugated metal layer 3 is sinusoidal waveform, and the amplitude of the sine wave of corrugated metal layer 3 is 0.5 ~ 1.2mm, and the ripple spacing of corrugated metal layer 3 is 1.0 ~ 10mm, and sine-shaped amplitude refers to have in the sinusoidal wave one-period arrival maximum value 2 times.Corrugated metal layer 3 is 2 ~ 4 layers, and described Expanded graphite packed layer 2 is 1 ~ 3 layer.The thickness of corrugated metal layer 3 is 0.2 ~ 0.6mm, and the thickness of described Expanded graphite layer 2 is 0.3 ~ 0.8mm.The material of corrugated metal layer 3 is carbon steel, stainless steel, titanium, monel metal, inconel.
The corrugated metal layer of this composite sealing pad is 2 layers, and the Expanded graphite packed layer is 1 layer, and the flexible graphite sealing layer is 2 layers.The thickness of corrugated metal layer is 0.6mm, and sinusoidal wave amplitude is 1.2mm, and the number of sinusoidal wave crest is 5, and the ripple spacing is 0.4mm.Expanded graphite packed layer, flexible graphite sealing layer thickness are 0.3mm.The thickness of this pad is 6mm.The corrugated metal layer material is carbon steel.Bonding by sealer between corrugated metal layer and Expanded graphite packed layer, the property graphite grazing layer.
The corrugated metal layer of this composite sealing pad is 2 layers, and the Expanded graphite packed layer is 1 layer, and the flexible graphite sealing layer is 2 layers.The thickness of corrugated metal layer is 0.5mm, and sinusoidal wave amplitude is 1mm, and the number of sinusoidal wave crest is 8, and the ripple spacing is 10mm.Expanded graphite packed layer thickness is that 0.4mm, flexible graphite sealing layer thickness are 0.8mm.The thickness of this pad is 5mm.The corrugated metal layer material is stainless steel.Bonding by sealer between corrugated metal layer and Expanded graphite packed layer, the property graphite grazing layer.
The corrugated metal layer of this composite sealing pad is 3 layers, and the Expanded graphite packed layer is 2 layers, and the flexible graphite sealing layer is 2 layers.The thickness of corrugated metal layer is 0.4mm, and sinusoidal wave amplitude is 0.8mm, and the number of sinusoidal wave crest is 4, and the ripple spacing is 12mm.Expanded graphite packed layer thickness is that 0.4mm, flexible graphite sealing layer thickness are 0.8mm.The thickness of this pad is 5.2mm.The corrugated metal layer material is titanium.Bonding by sealer between corrugated metal layer and Expanded graphite packed layer, the property graphite grazing layer.
The corrugated metal layer of this composite sealing pad is 4 layers, and the Expanded graphite packed layer is 3 layers, and the flexible graphite sealing layer is 2 layers.The thickness of corrugated metal layer is 0.4mm, and sinusoidal wave amplitude is 0.6mm, and the number of sinusoidal wave crest is 10, and the ripple spacing is 6mm.Expanded graphite packed layer, flexible graphite sealing layer thickness are 0.6mm.The thickness of this pad is 5.8mm.The material of corrugated metal layer is monel metal.Bonding by sealer between corrugated metal layer and Expanded graphite packed layer, the property graphite grazing layer.
The corrugated metal layer of this composite sealing pad is 4 layers, and the Expanded graphite packed layer is 3 layers, and the flexible graphite sealing layer is 2 layers.The thickness of corrugated metal layer is 0.2mm, and sinusoidal wave amplitude is 0.5mm, and the number of sinusoidal wave crest is 6, and the ripple spacing is 1.0mm.Expanded graphite packed layer, flexible graphite sealing layer thickness are 0.5mm.The thickness of this pad is 5.1mm.The material of corrugated metal layer is inconel.Bonding by sealer between corrugated metal layer and Expanded graphite packed layer, the property graphite grazing layer.
Claims (7)
1. composite sealing pad that ripple is stacked is characterized in that: described composite sealing pad mainly by two-layer at least corrugated metal layer (3), be filled between described corrugated metal layer (3) and the corrugated metal layer (3) Expanded graphite packed layer (2) and outside described corrugated metal layer (3) and the flexible graphite sealing layer (1) that coats corrugated metal layer (3) consist of.
2. composite sealing pad according to claim 1 is characterized in that: the waveform of described corrugated metal layer (3) is for sinusoidal wave, and corrugated metal layer (3) is 2 ~ 4 layers.
3. composite sealing pad according to claim 2, it is characterized in that: the amplitude range of described sine wave is 0.5 ~ 1.2mm; The number of sinusoidal wave crest is 4 ~ 10; Sinusoidal wave spacing is 0.4 ~ 12mm.
4. composite sealing pad according to claim 3, it is characterized in that: the ripple spacing of corrugated metal layer (3) is 1.0 ~ 10mm.
5. according to claim 2 or 3 described composite sealing pads, it is characterized in that: the thickness of corrugated metal layer (3) is 0.2 ~ 0.6mm.
6. composite sealing pad according to claim 1, it is characterized in that: described Expanded graphite packed layer (2) is 1 ~ 3 layer.
7. according to claim 1 or 6 described composite sealing pads, it is characterized in that: the thickness of described Expanded graphite packed layer (2) is 0.3 ~ 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220494734.6U CN202834060U (en) | 2012-09-26 | 2012-09-26 | Compound sealing spacer with corrugation stacking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220494734.6U CN202834060U (en) | 2012-09-26 | 2012-09-26 | Compound sealing spacer with corrugation stacking |
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| Publication Number | Publication Date |
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| CN202834060U true CN202834060U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220494734.6U Expired - Fee Related CN202834060U (en) | 2012-09-26 | 2012-09-26 | Compound sealing spacer with corrugation stacking |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104596691A (en) * | 2014-11-24 | 2015-05-06 | 宝鸡石油机械有限责任公司 | Method for testing pre-tightening force of underwater metal sealing gasket ring |
| CN104819302A (en) * | 2015-04-17 | 2015-08-05 | 中国科学院力学研究所 | Sealing system of variable mach number spraying pipe |
| CN105952898A (en) * | 2014-07-30 | 2016-09-21 | 丁永新 | Low-friction coefficient sealing packing ring and manufacturing method thereof |
| CN107101057A (en) * | 2017-05-24 | 2017-08-29 | 鞍钢蒂森克虏伯（重庆）汽车钢有限公司 | It is a kind of to strengthen the sealing gasket of flange high temp deformable seal |
| CN107237889A (en) * | 2017-07-03 | 2017-10-10 | 湖北长江石化设备有限公司 | A kind of Novel edge fin Composition spacer |
| CN108105405A (en) * | 2018-02-02 | 2018-06-01 | 高志男 | A kind of valve with sealing structure and apply its tail gas heat-exchanger rig |
| CN108458182A (en) * | 2018-04-23 | 2018-08-28 | 上海冀晟能源科技有限公司 | The sealing element and its manufacturing method of high temperature resistant melt salt corrosion |
| CN109471304A (en) * | 2018-12-20 | 2019-03-15 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel |
| CN109899519A (en) * | 2019-04-18 | 2019-06-18 | 常熟理工学院 | A kind of bilayer ripple graphite Composition spacer |
| US11536369B2 (en) | 2015-08-17 | 2022-12-27 | Flexitallic Investments, Inc. | Gasket |
| CN116816932A (en) * | 2023-06-07 | 2023-09-29 | 广东粤凯科技装备制造有限公司 | Multi-dimensional reinforced sandwich type composite sealing gasket |
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- 2012-09-26 CN CN201220494734.6U patent/CN202834060U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105952898A (en) * | 2014-07-30 | 2016-09-21 | 丁永新 | Low-friction coefficient sealing packing ring and manufacturing method thereof |
| CN106051158A (en) * | 2014-07-30 | 2016-10-26 | 丁永新 | Sealing filler ring and production method thereof |
| CN106090220A (en) * | 2014-07-30 | 2016-11-09 | 丁永新 | A kind of low-friction coefficient sealing drilled packing ring and production method thereof |
| CN106090219A (en) * | 2014-07-30 | 2016-11-09 | 丁永新 | The production method of sealing drilled packing ring |
| CN106051158B (en) * | 2014-07-30 | 2017-09-29 | 浙江红绿蓝纺织印染有限公司 | A kind of sealing drilled packing ring and its production method |
| CN105952898B (en) * | 2014-07-30 | 2017-09-29 | 浙江红绿蓝纺织印染有限公司 | Low-friction coefficient sealing drilled packing ring and its production method |
| CN104596691B (en) * | 2014-11-24 | 2017-01-18 | 宝鸡石油机械有限责任公司 | Method for testing pre-tightening force of underwater metal sealing gasket ring |
| CN104596691A (en) * | 2014-11-24 | 2015-05-06 | 宝鸡石油机械有限责任公司 | Method for testing pre-tightening force of underwater metal sealing gasket ring |
| CN104819302A (en) * | 2015-04-17 | 2015-08-05 | 中国科学院力学研究所 | Sealing system of variable mach number spraying pipe |
| CN104819302B (en) * | 2015-04-17 | 2017-03-15 | 中国科学院力学研究所 | A kind of sealing system for becoming Mach number nozzle |
| US11536369B2 (en) | 2015-08-17 | 2022-12-27 | Flexitallic Investments, Inc. | Gasket |
| CN107101057A (en) * | 2017-05-24 | 2017-08-29 | 鞍钢蒂森克虏伯（重庆）汽车钢有限公司 | It is a kind of to strengthen the sealing gasket of flange high temp deformable seal |
| CN107237889A (en) * | 2017-07-03 | 2017-10-10 | 湖北长江石化设备有限公司 | A kind of Novel edge fin Composition spacer |
| CN108105405A (en) * | 2018-02-02 | 2018-06-01 | 高志男 | A kind of valve with sealing structure and apply its tail gas heat-exchanger rig |
| CN108458182A (en) * | 2018-04-23 | 2018-08-28 | 上海冀晟能源科技有限公司 | The sealing element and its manufacturing method of high temperature resistant melt salt corrosion |
| CN109471304A (en) * | 2018-12-20 | 2019-03-15 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel |
| CN109471304B (en) * | 2018-12-20 | 2021-08-03 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| CN109899519A (en) * | 2019-04-18 | 2019-06-18 | 常熟理工学院 | A kind of bilayer ripple graphite Composition spacer |
| CN116816932A (en) * | 2023-06-07 | 2023-09-29 | 广东粤凯科技装备制造有限公司 | Multi-dimensional reinforced sandwich type composite sealing gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210926 |